TITLE: GCN CIRCULAR NUMBER: 31084 SUBJECT: GRB 211115A: CALET Gamma-Ray Burst Monitor detection DATE: 21/11/16 09:24:38 GMT FROM: Valentin Pal'shin at AGU <val@phys.aoyama.ac.jp> Y. Shimizu (Kanagawa U), A. Yoshida, T. Sakamoto, V. Pal'shin, S. Sugita (AGU), Y. Kawakubo (LSU), K. Yamaoka (Nagoya U), S. Nakahira (RIKEN), Y. Asaoka (ICRR), S. Torii, Y. Akaike, K. Kobayashi (Waseda U), T. Tamura (Kanagawa U), N. Cannady (GSFC/UMBC), M. L. Cherry (LSU), S. Ricciarini (U of Florence), P. S. Marrocchesi (U of Siena), and the CALET collaboration: The long GRB 211115A (MAXI/GSC detection: Serino et al., GCN Circ. 31082; Fermi-GBM trigger #658686687) was detected in ground analysis of the CALET Gamma-ray Burst Monitor (CGBM) data near the MAXI trigger time at 16:31:19 UTC on 15 November 2021. The burst signal was weakly seen by all CGBM detectors. The burst light curve shows a single pulse with a duration of ~10 sec. The ground processed light curve is available at http://cgbm.calet.jp/cgbm_trigger/ground/1321029033/ The CALET data used in this analysis are provided by the Waseda CALET Operation Center located at the Waseda University.